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參數(shù)資料
| 型號： | AN7191NZ |
| 廠商： | PANASONIC CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Dual 20 W BTL audio power amplifier |
| 中文描述： | 24 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封裝： | ZFM-15 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 146K |
| 代理商： | AN7191NZ |
13
ICs for Audio Common Use
AN7191NZ
I
Technical Information (continued)
[2] Application note (continued)
4. Ripple filter (continued)
6) After power off (STB-low), it takes about 10 seconds or less for the total circuit current to become the stand-
by current (10
μ
A or less). In order to reduce the inspection time at the set, insert the resistor of approx. 47 k
between the ripple filter terminal and GND. This can shorten the time to reach the standby current.
5. GND terminal
1) Be sure to short-circuit each
GND terminal of pin 3, pin 8,
pin 9 and pin 14 at the outside
of the IC when use.
2) For each GND terminal, the one-
point earth, referenced to the
GND connection point of elec-
trolytic capacitor between the
supply terminal and GND, is
most effective for reducing the
distortion. Even in the worst case, ground pin 8, pin 9 of input GND separately from all the other GND
terminals.
3) Each GND terminal is not electrically short-circuited inside. Only pin 8 is connected with the substrate.
4) Pin 9 is input signal GND. Connect only pin 9 with Pre-GND.
6. Cooling fin
1) The radiation fin is not connected with GND terminal by using Au wire. Only pin 8 is electrically connected
through the substrate.
2) Always attach an outside heat sink to the cooling fin. The cooling fin must be fastened onto a chassis for use.
Otherwise, IC lead failure may occur.
3) Do not give the cooling fin any potential other than the GND potential. Otherwise, it may cause breakdown.
4) Connection of the cooling fin with GND can reduce the incoming noise hum. (It is not necessary to connect
with GND in use, but connect with the power GND when connect with GND.)
200
μ
A
33
μ
F
12
1.2 mA
20 k
3.5 k
Figure 4
3.5 k
20 k
30 k
Constant
current source
Protection
circuit
V
REF
V
CC
1
3
8
9
14
To GND of input
Figure 5
_
_ g
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相關(guān)代理商/技術(shù)參數(shù) |
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| AN7194 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual BTL 50 W single power supply class-H power amplifier IC |
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| AN7194Z | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual BTL 50 W single power supply class-H power amplifier IC |
| AN7195 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
| AN7195K | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
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